TY - JOUR T1 - ELECTRON MICROSCOPY JF - Journal of Clinical Pathology JO - J Clin Pathol SP - 188 LP - 188 DO - 10.1136/jcp.16.2.188-a VL - 16 IS - 2 AU - T. Crawford Y1 - 1963/03/01 UR - http://jcp.bmj.com/content/16/2/188.1.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -